San Luis Obispo, CA Weather - Forecast & Monthly Averages

TEMPERATURE	43
HUMIDITY	86
PRESSURE	101970
WIND COND.	120 5.4

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Weather Quick Facts

The highest monthly average temperature in San Luis Obispo for September is 64.9 degrees
The lowest monthly average temperature in San Luis Obispo for December is 52 degrees
The most monthly precipitation in San Luis Obispo occurs in January with 3.9 inches
The air quality index in San Luis Obispo is 9% worse than the national average
The pollution index in San Luis Obispo is 106% worse than the national average

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San Luis Obispo Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	41°F	68°F	53°F	3.9"
February	43°F	67°F	54°F	2.6"
March	45°F	69°F	55°F	2.2"
April	47°F	71°F	57°F	1.4"
May	49°F	73°F	59°F	0.3"
June	52°F	77°F	62°F	0.1"
July	55°F	79°F	64°F	0.1"
August	56°F	80°F	64°F	0.0"
September	55°F	82°F	65°F	0.0"
October	52°F	80°F	63°F	0.9"
November	46°F	73°F	57°F	1.1"
December	41°F	66°F	52°F	3.1"

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San Luis Obispo air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
Index	San Luis Obispo	California	National
Air quality index	46	55	42
Pollution index	5,611,110	10,473,190	2,726,193

San Luis Obispo air quality

Measurement	Total
Days measured	365
Days with good air quality	230
Days with moderate air quality	132
Days w/ poor A.Q. for sensitive groups	3
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.020%
Benzene	0.060%
Carbon Tetrachloride	0.000%
Lead	0.060%
Mercury	0.010%

Average monthly San Luis Obispo temperature with heat index

San Luis Obispo monthly precipitation with daily maximum

San Luis Obispo monthly snow depth with daily maximum

San Luis Obispo monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Oceano, CA	7,601	46	8.0%
Arroyo Grande, CA	17,924	46	8.0%
Cayucos, CA	2,228	46	8.0%
Garden Farms, CA	418	46	8.0%
Pismo Beach, CA	8,042	46	8.0%
San Luis Obispo, CA	47,402	46	8.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Ocoee, FL	47,433	39	22.0%
East Providence, RI	47,442	44	12.0%
Beavercreek, OH	47,343	47	6.0%
Charleston, WV	47,273	40	20.0%
Woodstock, ON	47,584	n/a
San Luis Obispo, CA	47,402	46	8.0%

Source: The San Luis Obispo, CA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.